Chiltern Railways 631R51
View line Chiltern Railways
Alerts for train 631R51
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Chiltern Railways.
The mini-map returns when the train runs
On-time · 30 days
60%
3/5 runs under 3 min
RT coverage: 5 full · 0 partial · 0 no data
On-time · 90 days
77%
10/13 runs under 3 min
RT coverage: 13 full · 0 partial · 0 no data
Typical delay
−1min
Median at arrival, 90 days
30 days: +2 min
P90
+5min
9 in 10 runs arrive with less than this
30 days: +5 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3–10 min
- 10–30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Sat 10 Oct Max en route +7 min · last fix heading to Tyseley +7 min
- Sat 5 Sept Max en route +7 min · last fix heading to 66421 +6 min
- Sat 17 Oct Max en route +4 min · last fix heading to Tyseley +3 min
Distribution · 90 days
13 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 8% · 1
- On time 69% · 9
- 3–10 min 23% · 3
- 10–30 min 0% · 0
- 30+ min 0% · 0
On-time by weekday
- 100% M n=1
- — T n=0
- — W n=0
- — T n=0
- — F n=0
- 75% S n=12
- — S n=0
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sat 7 Nov | Tyseley 19:34 | −1 min | +1 min |
| Sat 31 Oct | Tyseley 19:42 | −1 min | +4 min |
| Sat 24 Oct | Tyseley 19:45 | +2 min | +3 min |
| Sat 17 Oct | Tyseley 19:47 | +3 min | +4 min |
| Sat 10 Oct | Tyseley 19:50 | +7 min | +7 min |
| Sat 3 Oct | 66421 19:42 | −1 min | +1 min |
| Sat 26 Sept | 66421 19:42 | −1 min | +1 min |
| Sat 19 Sept | 66421 19:41 | 0 min | +1 min |
| Sat 5 Sept | 66421 19:49 | +6 min | +7 min |
| Mon 31 Aug | 66421 19:41 | −2 min | +1 min |
| Sat 29 Aug | 66421 19:42 | −1 min | +2 min |
| Sat 22 Aug | 66421 19:42 | −1 min | +4 min |
| Sat 15 Aug | 66421 19:42 | −1 min | +3 min |
Each run is closed into train_runs (country, train number, service day) from the live positions. Final delay = last delay seen. Partial coverage: the feed stopped before the final stop (last value used, hatched in the chart). No data: a run without any valid delay; counts as neither on time nor late. Data collected since 11 July 2026.